[TYPO3-english] powermail + typoscript database query

[horace grant]

hi,

i am using the extension powermail and i need to add a unique id number to
every mail that gets sent out.

what is the best and easiest way to achieve this?

is it possible with typoscript to do a database query that counts the
powermail db entries on a specific page and returns that number? so i could
simply use this number as an id?

that was my first idea but i don't quite get this "select" stuff in
typoscript and what is possible there.

cheers,
horace